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# View of /trunk/NationalProblemLibrary/Rochester/setTrig07Identity/srw7_1_59.pg

Thu May 11 13:30:19 2006 UTC (7 years, 1 month ago) by jjholt
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Added tags.


    1 ## DESCRIPTION
2 ## Precalculus: Trigonometric Identities
3 ## ENDDESCRIPTION
4
5 ## KEYWORDS('trigonometry','trigonometric identities')
6 ## Tagged by cmd6a 5/11/06
7
8 ## DBsubject('Precalculus')
9 ## DBchapter('Analytic Trigonometry')
10 ## DBsection('Trigonometric Identities')
11 ## Date('')
12 ## Author('')
13 ## Institution('Rochester')
14 ## TitleText1('')
15 ## EditionText1('')
16 ## AuthorText1('')
17 ## Section1('')
18 ## Problem1('')
19
20 DOCUMENT();        # This should be the first executable line in the problem.
21
23 "PG.pl",
24 "PGbasicmacros.pl",
25 "PGchoicemacros.pl",
27 "PGauxiliaryFunctions.pl"
28 );
29
30 TEXT(beginproblem());
31 $showPartialCorrectAnswers = 0; 32 33 34 TEXT(EV2(<<EOT)); 35 If $$\sec t - \tan t = \frac{1}{f(t) + \tan t}$$, then 36$BR
37 $$f(t) =$$ \{ans_rule(10)\}.
38 $BR 39 EOT 40 41$ans1="sec(t)";
42
43 ANS(fun_cmp(\$ans1,var=>['t']));
44
45 ENDDOCUMENT();        # This should be the last executable line in the problem.